Malaria is the world's most important parasitic disease, accounting for an estimated 3 million cases and 1.5 to 2.7 million deaths annually. many people acquire malaria during travel to tropical and subtropical countries. Malaria occurs in most parts of sub-Saharan Africa, south and southeast Asia, Mexico, Haiti, central and south America, papua new guinea and the Solomon islands.
The risk of acquiring malaria for travellers depends mainly on specific risk behaviour e.g. rural travel, night-time exposure, unscreened accommodation. travel to areas with drug-resistant malaria. time of travel high or low transmission season.
